AR028529A1 - CAPILLARY FLOW CONTROL IN A FLUID DIAGNOSTIC DEVICE - Google Patents

CAPILLARY FLOW CONTROL IN A FLUID DIAGNOSTIC DEVICE

Info

Publication number
AR028529A1
AR028529A1 ARP010101547A ARP010101547A AR028529A1 AR 028529 A1 AR028529 A1 AR 028529A1 AR P010101547 A ARP010101547 A AR P010101547A AR P010101547 A ARP010101547 A AR P010101547A AR 028529 A1 AR028529 A1 AR 028529A1
Authority
AR
Argentina
Prior art keywords
bypass
channel
measurement area
diagnostic device
fluid
Prior art date
Application number
ARP010101547A
Other languages
Spanish (es)
Original Assignee
Lifescan Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lifescan Inc filed Critical Lifescan Inc
Publication of AR028529A1 publication Critical patent/AR028529A1/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
    • G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
    • G01N33/53—Immunoassay; Biospecific binding assay; Materials therefor
    • G01N33/536—Immunoassay; Biospecific binding assay; Materials therefor with immune complex formed in liquid phase
    • G01N33/537—Immunoassay; Biospecific binding assay; Materials therefor with immune complex formed in liquid phase with separation of immune complex from unbound antigen or antibody
    • G01N33/538—Immunoassay; Biospecific binding assay; Materials therefor with immune complex formed in liquid phase with separation of immune complex from unbound antigen or antibody by sorbent column, particles or resin strip, i.e. sorbent materials
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
    • G01N33/483—Physical analysis of biological material
    • G01N33/487—Physical analysis of biological material of liquid biological material
    • G01N33/49—Blood
    • G01N33/4905—Determining clotting time of blood
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T436/00—Chemistry: analytical and immunological testing
    • Y10T436/25—Chemistry: analytical and immunological testing including sample preparation
    • Y10T436/2575—Volumetric liquid transfer

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Immunology (AREA)
  • Chemical & Material Sciences (AREA)
  • Hematology (AREA)
  • Physics & Mathematics (AREA)
  • Molecular Biology (AREA)
  • Urology & Nephrology (AREA)
  • Biochemistry (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Analytical Chemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Pathology (AREA)
  • Biophysics (AREA)
  • Ecology (AREA)
  • Biotechnology (AREA)
  • Cell Biology (AREA)
  • Microbiology (AREA)
  • Investigating Or Analysing Biological Materials (AREA)

Abstract

Un dispositivo de diagnostico médico para medir una concentracion o propiedad que se analiza de un fluido biologico incluye canales de flujo capilar para llevar una muestra del fluido de una entrada a un punto de ramificacion, y después a un área de medicion y, alternativamente, a través de un canal de "bypass" a una region de derrame. Una primera junta de paradas para el flujo de fluido después que el mismo ingresa al área de medicion. El canal de "bypass" tiene una dimension capilar en por lo o menos una direccion. Una segunda junta de parada, en el canal de "bypass", tiene una region límite que tiene una dimension que es mayor en esta direccion y forma un ángulo que apunta hacia el punto de ramificacion . Con esta construccion, la segunda junta de parada inicialmente impide el flujo a la region de derrame, pero permite el flujo después que el área de medicion está llenada. El dispositivo es particularmente adecuado para medir el tiempo de coagulacion de la sangre.A medical diagnostic device for measuring a concentration or property that is analyzed from a biological fluid includes capillary flow channels to bring a sample of the fluid from an entrance to a branch point, and then to a measurement area and, alternatively, to through a bypass channel to a spill region. A first meeting of stops for fluid flow after it enters the measurement area. The "bypass" channel has a capillary dimension in at least one direction. A second stop joint, in the "bypass" channel, has a boundary region that has a dimension that is larger in this direction and forms an angle that points to the branch point. With this construction, the second stop joint initially prevents flow to the spill region, but allows flow after the measurement area is filled. The device is particularly suitable for measuring blood clotting time.

ARP010101547A 2000-03-31 2001-03-30 CAPILLARY FLOW CONTROL IN A FLUID DIAGNOSTIC DEVICE AR028529A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/541,376 US6908593B1 (en) 2000-03-31 2000-03-31 Capillary flow control in a fluidic diagnostic device

Publications (1)

Publication Number Publication Date
AR028529A1 true AR028529A1 (en) 2003-05-14

Family

ID=24159321

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP010101547A AR028529A1 (en) 2000-03-31 2001-03-30 CAPILLARY FLOW CONTROL IN A FLUID DIAGNOSTIC DEVICE

Country Status (21)

Country Link
US (1) US6908593B1 (en)
EP (1) EP1280602B1 (en)
JP (1) JP2003529763A (en)
KR (1) KR20020087448A (en)
CN (1) CN1238112C (en)
AR (1) AR028529A1 (en)
AT (1) ATE295227T1 (en)
AU (2) AU2001262923B2 (en)
CA (1) CA2404521A1 (en)
CZ (1) CZ20023250A3 (en)
DE (1) DE60110781T2 (en)
ES (1) ES2241828T3 (en)
HK (1) HK1050650A1 (en)
IL (1) IL151965A0 (en)
MX (1) MXPA02009700A (en)
MY (1) MY134187A (en)
PL (1) PL357113A1 (en)
PT (1) PT1280602E (en)
RU (1) RU2238147C2 (en)
TW (1) TW519567B (en)
WO (1) WO2001075433A2 (en)

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Also Published As

Publication number Publication date
DE60110781T2 (en) 2006-02-23
HK1050650A1 (en) 2003-07-04
PL357113A1 (en) 2004-07-12
KR20020087448A (en) 2002-11-22
WO2001075433A3 (en) 2002-03-14
US6908593B1 (en) 2005-06-21
DE60110781D1 (en) 2005-06-16
CN1238112C (en) 2006-01-25
JP2003529763A (en) 2003-10-07
ES2241828T3 (en) 2005-11-01
TW519567B (en) 2003-02-01
WO2001075433A2 (en) 2001-10-11
AU6292301A (en) 2001-10-15
ATE295227T1 (en) 2005-05-15
AU2001262923B2 (en) 2005-02-03
CZ20023250A3 (en) 2003-06-18
EP1280602A2 (en) 2003-02-05
EP1280602B1 (en) 2005-05-11
PT1280602E (en) 2005-07-29
MXPA02009700A (en) 2004-09-06
CN1422180A (en) 2003-06-04
RU2002125858A (en) 2004-03-10
RU2238147C2 (en) 2004-10-20
MY134187A (en) 2007-11-30
IL151965A0 (en) 2003-04-10
CA2404521A1 (en) 2001-10-11

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